Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ottawa to London from C$ 298

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 29/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Deals available from 900+ travel sites.

Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your results
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Ottawa to London

Cheap round-trip flights

These are some of the best round-trip flight deals from Ottawa to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ottawa to London.

Cheap last-minute flights

Planning a quick getaway from Ottawa to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ottawa to London

Find recent round-trip train or bus tickets from Ottawa to London.

All round-trip flight deals from Ottawa to London

The cheapest plane tickets from Ottawa to London found on KAYAK recently.
5:20 p.m. - 9:25 p.m.YOW-LHR
23h 05m1 stop
6:20 a.m. - 4:10 p.m.LHR-YOW
13h 50m1 stop
C$ 800Virgin Atlantic
Find Deal
Mon, 3 Mar - Mon, 10 Mar
5:20 p.m. - 4:35 p.m.YOW-LHR
18h 15m1 stop
9:00 a.m. - 3:10 p.m.LHR-YOW
11h 10m1 stop
C$ 816Virgin Atlantic
Find Deal
Mon, 3 Feb - Sun, 9 Feb
5:20 p.m. - 1:45 p.m.YOW-LHR
15h 25m1 stop
9:00 a.m. - 3:10 p.m.LHR-YOW
11h 10m1 stop
C$ 848Air France
Find Deal
Tue, 18 Feb - Tue, 25 Feb
6:20 p.m. - 6:20 p.m.YOW-LHR
20h 00m1 stop
5:35 p.m. - 4:10 p.m.LHR-YOW
26h 35m1 stop
C$ 868Air France
Find Deal
Sat, 15 Mar - Mon, 24 Mar
9:10 p.m. - 8:35 a.m.YOW-LHR
6h 25mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 990Air Canada
Find Deal
Wed, 16 Apr - Mon, 28 Apr
1:00 p.m. - 10:00 a.m.YOW-LHR
16h 00m1 stop
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 992Air Canada
Find Deal
Wed, 16 Apr - Mon, 28 Apr
5:05 p.m. - 10:45 a.m.YOW-LGW
12h 40m1 stop
12:40 p.m. - 9:01 p.m.LGW-YOW
13h 21m1 stop
C$ 1,006Porter Airlines
Find Deal
Fri, 16 May - Tue, 27 May
7:00 p.m. - 6:35 a.m.YOW-LHR
6h 35mdirect
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,009Lufthansa
Find Deal
Thu, 8 May - Sat, 24 May
7:00 a.m. - 10:45 a.m.YOW-LGW
22h 45m1 stop
12:40 p.m. - 8:06 a.m.LGW-YOW
24h 26m1 stop
C$ 1,014Porter Airlines
Find Deal
Fri, 16 May - Tue, 27 May
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,015Lufthansa
Find Deal
Wed, 16 Apr - Wed, 23 Apr
6:15 a.m. - 11:05 a.m.YOW-LHR
24h 50m1 stop
C$ 298WestJet
Find Deal
Sat, 29 Mar
8:10 p.m. - 12:50 p.m.YOW-LHR
59h 40m2 stops
C$ 410WestJet
Find Deal
Fri, 21 Feb
10:30 a.m. - 10:45 a.m.YOW-LGW
19h 15m1 stop
C$ 616Air Transat
Find Deal
Mon, 31 Mar
2:50 p.m. - 9:45 a.m.YOW-LGW
13h 55m1 stop
C$ 628Porter Airlines
Find Deal
Sun, 26 Jan
10:25 a.m. - 9:45 a.m.YOW-LGW
18h 20m1 stop
C$ 631Porter Airlines
Find Deal
Wed, 5 Mar
2:50 p.m. - 9:45 a.m.YOW-LGW
13h 55m1 stop
C$ 635Air Transat
Find Deal
Sun, 26 Jan
7:05 p.m. - 6:30 a.m.YOW-LHR
6h 25mdirect
C$ 953Air Canada
Find Deal
Mon, 28 Apr
7:05 p.m. - 6:30 a.m.YOW-LHR
6h 25mdirect
C$ 959Air Canada
Find Deal
Mon, 28 Apr
7:05 p.m. - 6:30 a.m.YOW-LHR
6h 25mdirect
C$ 1,002Lufthansa
Find Deal
Mon, 31 Mar
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
C$ 1,026Lufthansa
Find Deal
Wed, 14 May
5:20 p.m. - 4:35 p.m.YOW-LHR
18h 15m1 stop
6:20 a.m. - 3:10 p.m.LHR-YOW
13h 50m1 stop
C$ 931Air France
Find Deal
Sat, 25 Jan - Tue, 11 Feb
5:20 p.m. - 6:20 p.m.YOW-LHR
20h 00m1 stop
7:35 p.m. - 3:10 p.m.LHR-YOW
24h 35m1 stop
C$ 947Air France
Find Deal
Sat, 25 Jan - Sun, 16 Feb
5:20 p.m. - 4:35 p.m.YOW-LHR
18h 15m1 stop
6:30 a.m. - 3:10 p.m.LHR-YOW
13h 40m2 stops
C$ 962
Find Deal
Sat, 25 Jan - Tue, 11 Feb
4:00 p.m. - 9:45 a.m.YOW-LGW
12h 45m1 stop
11:40 a.m. - 3:10 p.m.LGW-YOW
32h 30m1 stop
C$ 1,022Porter Airlines
Find Deal
Sat, 25 Jan - Sun, 16 Feb
4:00 p.m. - 9:45 a.m.YOW-LGW
12h 45m1 stop
11:40 a.m. - 12:40 a.m.LGW-YOW
18h 00m1 stop
C$ 1,037Porter Airlines
Find Deal
Sat, 25 Jan - Tue, 11 Feb
5:20 p.m. - 4:35 p.m.YOW-LHR
18h 15m1 stop
12:20 p.m. - 12:09 a.m.LHR-YOW
16h 49m2 stops
C$ 1,054
Find Deal
Sat, 25 Jan - Wed, 12 Feb
4:00 p.m. - 9:45 a.m.YOW-LGW
12h 45m1 stop
11:40 a.m. - 12:40 a.m.LGW-YOW
18h 00m1 stop
C$ 1,113Air Transat
Find Deal
Sat, 25 Jan - Wed, 12 Feb
6:20 a.m. - 9:45 a.m.YOW-LGW
22h 25m1 stop
11:40 a.m. - 12:40 a.m.LGW-YOW
18h 00m1 stop
C$ 1,653Air Transat
Find Deal
Wed, 22 Jan - Wed, 29 Jan
4:45 p.m. - 7:10 a.m.YOW-LHR
9h 25m1 stop
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,804Air Canada
Find Deal
Fri, 24 Jan - Wed, 2 Apr
2:45 p.m. - 7:10 a.m.YOW-LHR
11h 25m1 stop
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,814Air Canada
Find Deal
Fri, 24 Jan - Wed, 2 Apr
9:10 p.m. - 8:35 a.m.YOW-LHR
6h 25mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 990Air Canada
Find Deal
Wed, 16 Apr - Mon, 28 Apr
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 996Air Canada
Find Deal
Wed, 16 Apr - Mon, 28 Apr
7:05 p.m. - 6:30 a.m.YOW-LHR
6h 25mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,006Air Canada
Find Deal
Thu, 17 Apr - Mon, 28 Apr
7:00 p.m. - 6:35 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,009Lufthansa
Find Deal
Mon, 5 May - Mon, 19 May
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,015Lufthansa
Find Deal
Wed, 2 Apr - Thu, 24 Apr
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,018Air Canada
Find Deal
Wed, 2 Apr - Thu, 24 Apr
6:55 p.m. - 6:30 a.m.YOW-LHR
6h 35mdirect
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,245Lufthansa
Find Deal
Mon, 14 Jul - Wed, 13 Aug
6:55 p.m. - 6:30 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,270Lufthansa
Find Deal
Mon, 14 Jul - Thu, 14 Aug
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
12:40 p.m. - 3:00 p.m.LHR-YOW
7h 20mdirect
C$ 1,287Lufthansa
Find Deal
Wed, 2 Jul - Wed, 16 Jul
9:00 p.m. - 8:35 a.m.YOW-LHR
6h 35mdirect
2:05 p.m. - 4:25 p.m.LHR-YOW
7h 20mdirect
C$ 1,415
Find Deal
Sat, 28 Jun - Mon, 14 Jul

United Airlines flights from Ottawa to London

Our best United Airlines deals on Ottawa to London flight tickets
United Airlines
30 Apr
YOW5:50 p.m.Ottawa
12h 35m
1 stop
LHR11:25 a.m.London Heathrow
19 May
LHR3:20 p.m.London Heathrow
28h 07m
2 stops
YOW2:27 p.m.Ottawa
C$ 1,083
Find similar
United Airlines
28 Jan
YOW5:00 p.m.Ottawa
32h 40m
2 stops
LHR6:40 a.m.London Heathrow
16 Feb
LHR12:05 p.m.London Heathrow
27h 26m
2 stops
YOW10:31 a.m.Ottawa
C$ 1,087
Find similar
United Airlines
16 Apr
YOW6:33 a.m.Ottawa
18h 22m
2 stops
LHR5:55 a.m.London Heathrow
23 Apr
LHR1:00 p.m.London Heathrow
25h 58m
2 stops
YOW9:58 a.m.Ottawa
C$ 1,090
Find similar

Air France flights from Ottawa to London

Our best Air France deals on Ottawa to London flight tickets
Air France
18 Feb
YOW5:20 p.m.Ottawa
15h 25m
1 stop
LHR1:45 p.m.London Heathrow
25 Feb
LHR9:00 a.m.London Heathrow
11h 10m
1 stop
YOW3:10 p.m.Ottawa
Air France
28 Jan
YOW5:20 p.m.Ottawa
18h 15m
1 stop
LHR4:35 p.m.London Heathrow
5 Feb
LHR2:45 p.m.London Heathrow
29h 25m
1 stop
YOW3:10 p.m.Ottawa
Air France
28 Jan
YOW5:20 p.m.Ottawa
12h 10m
1 stop
LHR10:30 a.m.London Heathrow
16 Feb
LHR7:35 p.m.London Heathrow
24h 35m
1 stop
YOW3:10 p.m.Ottawa

See travel insights to London from

How to get the cheapest flight ticket from Ottawa to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ottawa and London?

What is the cheapest month to fly to London?

In general, February is the cheapest month to fly from Ottawa to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 990. If you aren’t able to travel to London during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 1,034.

What is the cheapest day to depart on your flight to London?

According to our data, Sunday is the cheapest day to fly to London from Ottawa. The lowest ticket price found for a Sunday departure recently was C$ 1,103. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to London for around C$ 1,207.

What is the cheapest time of day to depart on your flight to London?

Our most recent data shows that the best time of day to fly to London is in the afternoon. Flights from Ottawa to London during this time can be as low as C$ 1,117. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,182 per ticket.

What is the cheapest Ottawa to London flight route?

Fly from Ottawa to London Heathrow for the best Ottawa - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Ottawa when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to London for around C$ 1,182 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ottawa for as low as C$ 1,071 on momondo.

What cabin class options are available on Ottawa to London flights?

There are 3 cabin classes available to choose from on Ottawa to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ottawa to London flight prices changed over time?

As of January 2025, prices for Ottawa to London flights are approximately 26% cheaper when compared to flights at the same time last year.

When to book flights from Ottawa to London

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to London (YOW to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to London

Best price found

C$ 298

Fastest flight time

6h 25m

Direct flights

Tue, Thu, Fri and Sun

Airports in London

6 airports
The best one-way flight to London from Ottawa in the past 72 hours is C$ 298. The best round-trip flight deal from Ottawa to London found on momondo in the last 72 hours is C$ 800.
The fastest flight from Ottawa to London takes 6h 25m
Direct flights go from Ottawa to London on Tuesday, Thursday, Friday and Sunday. Airlines offering direct flights are: Lufthansa and Air Canada.
There are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

  • How far is Ottawa to London by plane?

    A flight from Ottawa to London will travel around 5358.1 km. In terms of flight time, this usually takes a little over 6h 25m.

  • When did momondo last update prices for flights from Ottawa Airport to London?

    Prices for flights from Ottawa Airport to London were last updated today.

  • How many operators does momondo search for flights from Ottawa Airport to London?

  • How old do you have to be to fly from Ottawa Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ottawa to London?

  • What is the most popular airline from Ottawa to London?


Best airlines flying from Ottawa to London

Compare and see reviews for airlines that fly from Ottawa to London with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom C$ 763Free CancellationRating
7.5
665 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom C$ 774Free CancellationRating
7.4
1,490 reviews
Search Air France flights
Porter AirlinesPriceFrom C$ 934Free CancellationRating
7.9
277 reviews
Search Porter Airlines flights
Air TransatPriceFrom C$ 980Free CancellationRating
7.8
381 reviews
Search Air Transat flights
Air CanadaPriceFrom C$ 1,013Free CancellationRating
7.0
8,635 reviews
Search Air Canada flights
LufthansaPriceFrom C$ 1,014Free CancellationRating
6.7
7,111 reviews
Search Lufthansa flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Ipswich
Hounslow
Dartford
Crawley
Richmond
Ilford
Canterbury
Hayes
Newport
Slough
Maidstone
Chichester
Wokingham
Dover
Worthing
Croydon
Feltham
Wembley
Staines-upon-Thames

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to London for you.

Can I find flights from Ottawa to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ottawa to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Ottawa to London?

Once you have performed a search for Ottawa to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ottawa to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sun 26/1
Sun 2/2
Email me momondo's favourite deals

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 57.3 km from London